/etc/resolv.conf is empty when dns=* is set
root@grml:~# cat /etc/resolv.conf
# Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8)
# DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN
root@grml:~# dmesg|grep "Command line"
[ 0.000000] Command line: initrd=/boot/grml/initrd.img boot=live nosound
nonetworking dns=8.8.8.8,8.8.4.4 noeject noquick nostats services=ssh noconsolefont
nogpm tz=Europe/Berlin lang=us vga=normal nomodeset live-media-path=/live/grml/
bootid=grml001 apm=power-off nomce BOOT_IMAGE=/boot/grml/vmlinuz
resolvconf -u doesn't help |